Trash disposal apparatus



Nov. 3, 1964 P. A. KREIDER TRASH DISPOSAL APPARATUS 2 Sheets-Sheet 1 Filed May 8, 1963 FIG. 2

FIG.4

FIG 3 INVENTOR. PETER A. KREIDER ATTORNEY Nov. 3, 1964 P. A. KREIDER 3,155,314

TRASH DISPOSAL APPARATUS Filed May 8, 1965 2 Sheets-Sheet 2 Q w m INVENTOR. PETER A. KREIDER ATTORNEY United States Patent The present invention relates to an apparatus for receiving trash from an automotive vehicle.

A major object of the present invention is to provide an improved version of the trash disposal system disclosed and claimed in my Patent No. 3,081,937 which I issued March 19, 1963, and one that is particularly adapted to be located adjacentment a service island provided in the conventional automotive service station on which gasoline pumps, air hoses, water hoses, and like equipment are mounted.

A further object of the invention is to supply a trash disposal apparatus that automatically responds to the arrival of an automotive vehicle and assumes a trashreceiving position, no matter which side of the service island the vehicle may approach.

Yet a further object of the invention is to provide a trash disposal apparatus that permits the trash to be disposed from a vehicle without the necessity for the occupants thereof to alight therefrom, and one that automatically closes from a trash-receiving position after a predetermined length of time. 7

A still further object of the invention is to provide a simple pneumatic control mechanism that automatically opens and closes the trash disposal apparatus, and one which, due to its simplicity of structure,,requires a minimum of maintenance attention.

A further object of the invention is to supply a trash disposal apparatus into which a liquid disinfectant-deodorant is automatically sprayed each time the trash-receiving chute thereof opens and closes to discouragethe attraction thereto of flies and other insects; i

Another object of the invention is to provide a trash disposal apparatus wherein an open-mouthed bag may be removably supported, and when filled, may be easily removed and replaced. 1 t

A further object of the invention is to supply a unique trash-receiving bag and apparatus for removably supporting the. same within the confines of the trash disposal apparatus. V

A still further object of the invention is to provide a trash. disposal apparatus that only requires a source of compressed air for actuationthereof, and due to the structure thereof can be either removably or permanently mounted on an. automotive service island in a show the trash-receivingbag used therewith, means for removably supporting said bag within the apparatus, and anautornatically operated dispenser of a liquid disinfectant-deodorant; H

FIGURE 2 is a fragmentary top plan view of one of the ,pins which removably support the trash-receiving bag,

- taken on 1ine'22 ofFIGURE 1;

, FIGURE 3 is a vertical cross-sectional view of the I pin;shown, inFIGURE Z- taken on line 3j3 thereof;

j" FIGURE 4 is a side elevational view of one of the line. 4: iOf FIGURE 1;

. trash-receiving chutes'used in the apparatus, taken on FIGURES is a longitudinal crosssectional the, actuator utilized in moving =the ch ute to an open posi-, tion; p i 1 .such as a flexible hose, or the like.

springs K at all times tend to pivot guides B to closed FIGURE 6 is a detailed vertical cross-sectional view of the disinfectant-deodorant dispenser associated with the apparatus;-

FIGURE 7 is a diagrammatic view of a first actuating apparatus for the disinfectant-deodorant dispenser;

FIGURE 8 is a diagrammatic view of a second actuating apparatus that may be used with the disinfectantdeodorant dispenser; and

FIGURE 9 is a diagrammatic view of a third actuating apparatus that may be employed with the disinfectantdeodorant dispenser.

With continuing reference to the drawings for the general arrangement of the invention, it will be seen to include a generally rectangular container A having two normally closed, oppositely disposed trash-receiving guides B mounted thereon. Container A removably supports a trash-receiving bag or sack C within the interior thereof. Two actuators D are disposed inside container A, and when energized pneumatically by a pulse of air at elevated pressure, each actuator causes the guide B associated therewith to pivot to an open trash-receiving position, and thereafter slowly move to the closed position. The pulse of air which energizes each actuator is provided when an automotive vehicle (not shown) runs over a length of hose E.

The container A, is preferably located on a service island (not shown) in an automotive service station. The two hoses E, each connected to one of the actuators D, extend outwardly v on drives (not shown) on opposite sides of the island, and are so disposed that they are run over by a vehicle as it approaches the island. 'Such hoses E are in present-day use in service stations to ring a bell or otherwise alert the attendant of the arrival of a vehicle. I i

The container A is provided with a door F that is normally closed, and which is supported on hinges G. When door F is opened it permits access to the interior of container A whereby a trash-filled sack C may be removed and a new sack installed therein. Trash and refuse from an automotive vehicle frequently contains remnantsof food, which when deposited in one of the sacks C, tend to attract flies and other insects. An ejector H, is located in the upper interior of container A, which dispenses a charge of liquid disinfectant-deodorant into sack C each time one of the guides is moved to a refuse-receiving position.

The energy utilized in moving each of the trash-receiving guides B to an open position is derived from compressed air supplied from a source thereof (not shown), which discharges to the container A through a conduit J, Two tensioned shown in FIGURE 1, each of which is operated by an independent actuator D. .It'will be apparent that the trash disposal 'appartaus could be formed with but a single guide B and single actuator D if desired.I The guides B and actuators D operate in the same manner, and the detailed @descriptionof one applies equally well to 'the other I I. e w I Each". guide B is preferably fabricatedfrorn sheet metal and comprises a firstwall 18, second. wall 2 t angularly disposed and connected thereto, and two side walls 22 connected to the longitudinal edges of the first and second walls. Two sets of hinges G pivotally support each guide B, and are connected thereto at positions adjacent the junctions of the first and second walls 18 and 20 respectively, as best illustrated in FIGURE 1. Hinges G are also connected to portions 24 of two side walls adjacent the openings 16 formed therein. When each guide B is in an open position as shown in FIGURE 1 the first wall 18 slopes downwardly and inwardly to present a surface on which trash (not shown) may be deposited. Each second wall 20 is so angularly disposed relative to one of the walls 18 that as one .of the guides B moves to a closed position as shown to the right in FIGURE 1, the second wall assumes a downwardly and inwardly inclined position to discharge trash thereon into the sack C within container A.

Each of the guides B has a rod 26 pivotally connected to the second wall 20 thereof. Each rod 26 extends downwardly, and by a loop 28 or other means on the lower end thereof, is pivotally connected to an eye 30 affixed to the upper portion of a piston '32. V

The lower portion .of .one of the rods 26 and the detailed structure of one of the actuators D is shown in FIGURE 5. Each actuator D includes an open-ended cylinder 34 in which one of the pistons 32 is slidably mounted. Each rod 26 extends upwardly through a first open end 36 of one of the cylinders 34. The second end 38 of each cylinder has exterior threads 40 formed thereon that engage interior threads 42 formed in one of *two first housings L. When threads 38 and 49 are in engagement they serve to hold one of the cylinders 34 and first housings L together, as shown in FIGURE 5. Each housing L comprises a first side :wall 44 and first and secondend walls 46 and 48 respectively. Each end wall 46 serves to .close one of the second ends 38 of one of the cylinders 34, and each first housing L is supported at a fixed position within container A by a conventional bracket 50, clip, or the like.

First, second and third resilient diaphragms M, N and 0 respectively, are provided for each actuator D, and each actuator includes a sec-0nd housing P that is defined by a second side wall 52 and third and fourth end walls 54 and 56 respectively. First and second housings L and P of each actuator D are in coaxial alignment, as shown in FIGURE 5. One of the first diaphragms M is disposed between the second end wall 48 of first housing 1., and the third end wall 54 of second housing P. Each fiange 69, and the secondend wall 48 towards third end wall 54 to pressure-grip a circumferential portion of the diaphragm M situated therebetween.

A cup-shaped third housing Q is provided that is defined by-a third side wa1l66 and fifth end wall 68. Housing Q is in coaxial alignment with second housing P, and a flange 70 projects from this housing adjacent the fourth end wall 56 thereof. Flange 70 has a number .of circumferentially spaced tapped bores 72 therein. A

flange 74 extends outwardly from housing Q, and has a number of .circurnferentially spaced openings 76 formed therein through which screws 78 project to engage tapped bores 72. When screws 78 are tightened, a circumferential portion' of third diaphragm O is gripped between an end 80 of second housing'P and an end 82 0f third housing Q. Diaphragm O is very flexible, and the center portion thereofmoves a substantial distance. relative to housing Q when the surface.84 of the diaphragm' is subjected to but slight pressure.

A circumferential edge portion of second diaphragm N rests on a ring-shaped seat 86 formed at the junction of a tapped bore 88 and counterbore 90. A nipple 92 is threaded into bore 88, and when fully screwed thereinto, pressure-contacts an upper circumferential portion of the second diaphragm N (FIGURE 5). Diaphragm N is then gripped between the inner end of the nipple 92 and seat 86.

The second diaphragm N, together with the first end wall 46, second end wall 48, first diaphragm M, and first side wall 44 cooperatively define a first confined space 94. A second confined space 96 is defined by the second side wall 52, third end wall 54, fourth end wall 56, and first diaphragm M in housing P. A third .confined space 98 is defined by the fifth wall 68, side wall 66, and the third diaphragm. O, as also shown in FIG- URE 5. V

In FIGURE 5 it will be seen that a fourth confined space 186 of variable volume is defined in cylinder 34 by the first end wall 46 and piston 32. A passage 108 of small transverse cross section is formed in the first end wall 46, and is in communication with confined space 186 and the ambient atmosphere. The purpose of this passage is to regulate the rate at which air escapes from space 106 as the springs K tend to move the piston 32 and rods 26 downwardly to pivot one of the guides B from the open position to the closed position.

A valve member R (FIGURE 5) is provided, one end of which is afiixed to the central portion of first diaphragm M by conventional means 110. Valve member R includes an enlarged cylindrical portion 112, which when diaphragm M moves to the right, sealingly contacts the surface 114 of first end wall 46 and prevents the flow of air from confined space 94 into bore 102.

A passage 116 is formed in end wall 46 that is in communication with bore 102 and extends through this end wall to terminate in an enlarged threaded passage extension 118. Passage extension 118 is connected to a tube 120 as shown in FIGURE 7, that projects into the disinfectant-deodorant ejector H illustrated in FIGURE 1. When air is discharged through passage 116, passage extension 118, and tube 120, it causes actuation of ejector H in the manner to be explained in detail hereinafter, to dispense a predetermined quantity of disinfectant-deodorant onto the trash contained in sack C. The first end wall 46 also has a passage 1 22 formed therein that extends to a transversely positioned cavity 124 provided with threads 126 on the outer end thereof. An externally threaded plug 128 engages threads 126 and serves to close the outer end of cavity 124. Plug 128 has a. bore 130 extending longitudinally therethrough.

A compressed helical spring 132 is disposed in cavity '124 and at all times urges a ball 134 downwardly to seal with that portion-of the side wall 46 at the junction of passage 122 and cavity 124, as best seen in FIGURE '5, The ball 134 serves as a check valve to permit discharge of air from the first confined space 94 to the ambient atmosphere when the pressure on the air in space 94 is sufiiciently great as to move the ball 134 towards the 'plug 128 and against the compressive force provided by the spring 132. 'The fourth end wall 56 (FIGURE 5) supports a cylindrical boss 136 having a closed end 138 that is disposed adjacent the third end wall 54 of housing P. A transverse bore 140 is formed in boss 136 and on the2 outer end thereof develops into a tapered valve seat 14 A valve member 144 is provided that has a'tapered, circumferentially extending edge of such configuration as 'to permit sealing engagement thereof 'with seat 142 when disposed "inthe position shown in FIGURE 5. A rigid member-146 extends from valve member 144 and is pivotallyconnec'ted at 148 to a first link 150. Link 150 is pivotally connected at 152 to a second link 154 and a a third link'156, and link 156 is pivotally connected at 158 to a pin '160 that is-;rigidly supported in the boss 136.

Second link154 is afiixed by conventional means 162 to the central portion of the third diaphragm O.

I A tubular boss 164 projects from the third housing Q and communicates with the interior thereof to the left of the third diaphragm O as shown in FIGURE 5. By conventional means (not shown) boss 164 is connected to the resilient hose E, which may be either closed at the end or have a closed bulb afiixed to the end thereof, whereby when either the hose or bulb is run over by a vehicle, a pulse of air will be discharged through hose E to enter the third confined space 98. A transverse constricted bore 168 extends through third housing Q and communicates with confined space 1 8 and the ambient atmosphere.

In operation, the trash disposal apparatus is positioned adjacent an island (not shown) in an automotive service station (not shown), with the two hoses E extending across the drives (not shown) on each side of the island, and the conduit 1 is connected to a source of compressed air. Conduit I has threads 17% formed on one end thereof that engage a tapped bore 172 formed in first side wall 44, which bore is in communication with a counterhore 174. Bore 172 and counterbore 174 are connected by a tapered valve seat 176 formed in the first side wall 44.

'A valve member 178 is provided that has a tapered surface 180 which is" adapted to sealingly engage the tapered seat 176. A rod 182 extends from valve member 178 to the second diaphragm N to which the rod 132 is connected by conventional means 184. Compressed air (from the sourcenot shown) flows through the conduit J and counterbore 174 into the first confined space 94. Two axially aligned passages 186 and 188 are formed in the second and third end walls 48 and 54, respectively, and these passages are in communication by means of an opening 190 formed in the first diaphragm. As the air pressure increases in confined space 94, air flows through the passages 186, 188 and opening 190, into the second confined space 96, as may best be seen in FIGURE 5. Such flow will continue until the air pressure in spaces 94 and 96 is equalized.

When the air pressure in spaces 94 and 96 is equal, the central portion of the first diaphragm M is not subjected to any transversely directed air forces, and the valve portion 112 sealingly engages the surface 114 of firstrend wall 46 due to resilient force from diaphragm M which one of the flexible hoses E or bulb 166 connected thereto,

a pulse of compressed air flows through the tube E to enter the confined space 98 through a bore 192 formed in the third housing Q. This pulse of air momentarily increases the pressure of air in the confined space 18, to

the extent that the third diaphragm 0 moves to the right.

Such movement of diaphragm O to the right results in momentary lifting of the valve member 144 out of seal: ing engagement with seat 1&2, and the air at elevated pressure freelyflows through the bore 140to discharge into the ambient atmosphere through a passage 194 formed in the second housing P. h Thereaften'.thepressurein the secondconfined space 96 drops, with the central portion of the first diaphragm '.M then deforming further to the ,left. as illustrated in FIGURES, to break the seal between the valveportion 112 and surface 114, Mr at elevated pressure then flows at a; predetermined rate through bore 1% and. counterbore 104 into the fourth confined space 106 to enlarge this space, ,by moving the piston 32 and rod26 connected After the valve member 144 returns to scaling engagement with seat 142, air at elevated pressure flows from the first confined space 94 through the passage 186, opening 190 and passage 1&8 into the second confined space 96 at a rate substantially slower than the rate at which air discharges from space 94 to space 1%. As the air pressure in space 96 increases, a greater force is exerted thereby on the central portion of the diaphragm M, which then moves to the right.

When the air in first confined space 94 and second confined space 96 has equalized, the valve member R will have again been moved to the right, to the extent that the valve portion 112 sealingly engages the surface 114 and further air flow into the fourth confined space 196 of variable volume is stopped. The piston 32 is then at the top of its stroke, and upon cessation of the discharge of air at an elevated pressure into space 1%, the air tends to bleed therefrom through the passage ltld.

At this time, the springs K, of course, are exerting a downward forceon the rod 26 and piston 32 to discharge air in the fourth confined space 1% through the passage 1% into the ambient atmosphere. The cross section of passage 108, as well as the force exerted by springs K on the piston 32, determines the rapidity with which this piston will move from the top of its stroke to a position adjacent the first housing L. In other words the rate at which airis discharged through passage 108 determines the rate at which one of the guides B will be returned from the open trash-receiving position to the closed postion shown to the right'in FIG- URE '1.

Concurrently with discharge of air to the fourth confined space 1% as described above, air is also discharged through the passage 115 to the tube 126 that leads to the disinfectant-deodorant ejector H shown in FIGURE 1. The flow of compressed air through the tube 12% actuates the ejector H to discharge a predetermined quantity of liquid disinfectant onto the refuse (notshown) in the sack C to thus minimize attraction thereto by flies and other insects. The ball 134, together with the compressed spring 132, cooperatively provide a relief valve to permit discharge of air at elevated pressure from the first confined space 94 into the ambient atmosphere when the pressure onthis air exceeds a predetermined magnitude. p

In the operation of the apparatus, the time flow of air through passage 1&4 is of shorter duration than'through passages 186, 188 and opening 1%. The time flow of 'air through passage 168 is substantially greater than through passages 136, 188 and opening 1%.

The disinfectant-deodorant ejector H includes a receptacle 1% that is preferably open at the. top and at thelower end thereof develops into a solid body 198. Body 198 has a vent passage 299 formed therein that is in communication with the ambient atmosphere and a tube 202. Tube 2632 is supported from body 1% by conventional' rneans, and is used only if a bottle (not shown) is inverted and held in a cradled position in the receptacle 196.

A confined space 2M is provided in body 193, and a first bore 2% extends upwardly in this body from space, 264. Bore 2% develops into an upwardly and inwardly tapered seat 2418 that is incommunication with a counterbore 210, A ball 212 is held in; a'pos'ition "adjacent seat 2138 an a, screen 213, or other porous sup- 7 The confined space 204 is in communication'with' atapped bore 214, and a ring-shaped seat 216 isfdefinedis gripped between seat 216 and the inner end of tubular member 218.

A second tapped bore 222 is formed in body 198. Bore 222 is engaged by an externally threaded second bore '224 that has a longitudinally extending bore 226 and counterbore 228 formed therein. A tapped valve seat 230 is defined between the bore 226 and counterbore 228. A ball 232 is disposed in bore 226, and at all times is urged into sealing contact with valve seat 230 by a compressed helical spring 234.

The lower end of bore 226 is threaded and is engaged by an externally threaded plug 236 in which passages 238 are formed, through which liquid disinfectant- .deodorant can be discharged into the confines of the container A when the ejector H is disposed in the position shown in FIGURE 1. The tubular member 218 is connected to a conduit or hose 126 that extends to the tapped passage extension 118, and is connected thereto by conventional fastening means (not shown). The liquid disinfectant-deodorant will flow from receptacle 196 into the confined space 264, and so remain until air is discharged through hose 120 into the tubular member-218 to deform the fourth diaphragm 220 to the left as shown in FIGURE 6.

As the diaphragm 220 is so deformed, pressure is exerted on the liquid disinfectant-deodorant in space 204, to the extent that the ball 232 is moved downwardly out of engagement with seat 230, to permit the liquid to discharge through the passages 238 into the confines of container A. When such increase in pressure occurs, the ball 212 is moved upwardly into engagement with seat 216 to prevent upward flow of any appreciable quantity of liquid from space 204 through the counterbore 210 and first bore 206 into the confines of the receptacle 196.

From the above description of the ejector H it will been seen that the ball 212 acts as a check valve to permit confined space 204 to fill with the liquid disinfectant-deodorant by force of gravity, but prevents flow of this liquid back into the receptacle 196. The ball 232 is spring-loaded and permits discharge of liquid through passages 238 only when the diaphragm 220 is moved inwardly by one of the means shown in FIG- URES 7-9 inclusive. When the diaphragm 220 is not deformed inwardly as shown in FIGURE 6, the confined space 204 is of a predetermined size, and a prescribed volume of liquid from receptacle 196 will flow into this space by force of gravity. This measured quantity of liquid in space 204 will be discharged therefrom through passages 238, either by deforming the diaphragm 220 inwardly by a fluid under pressure in the manner shown in FIGURE 7 and 8, or mechanically as illustrated in FIGURE 9. Passages 238 are so arranged that the upper portions thereof direct a spray into the upper portions of the container A, and the lower portions of the passages, a downward spray into the trash in sack C. A deflector 242 directs the liquid from the lower portion of passages 238 downwardly as above described. a

A first alternate form of an actuating means for the ejector H is shown in FIGURE '8. In this alternate form of actuator a tube 120' is connected to a hose E and bulb E" which are filled with a hydraulic fluid, as shown in my co-pending application previously identified. In crease of pressure on the hydraulic fluid when the bulb E" is run over by a vehicle serves to deform the diaphragm 220. 7

A second alternate form of actuating means for ejector H is illustrated in FIGURE 9, wherein the hose 120 to tubular member 218' is eliminated. A'plunger 244 is slidably mounted in tubular member 218. When plunger 244 is moved inwardly in member 118, the diaphragm is attained.

The plunger 244 is pivotally connected at 246 to a rod 248, on one end of which a cylinder 250 is mounted. Cylinder 250 has a helical spring 252 therein which abuts against a piston 254 that is slidably mounted in the cylinder. Piston 254 is connected to a first rod 256, with this rod being pivotally connected at 258 to a second rod 260 that extends to, and is connected to one of the guides B. The pivotal connection as 258 is also made with a third rod 262, and at an intermediate position thereon, and this rod is pivotally supported on a fixed pin or shaft 264. Rod 262 terminates in afoot pedal 266, and when a downward force is applied to the pedal, rod 260 is moved upwardly to pivot one of the guides B to an open position, and plunger 244 is moved inwardly to deform diaphragm 220 before guide B is opened appreciably for the purpose described hereinabove.

The sack C preferably has four circumferentially spaced eyes 263 formed therein that removably engage upwardly extending pins 270. Pins 270 are supported .on the upper ends of relatively stiff springs 272, which are rigidly affixed by conventional means 274 to the bot- .tom 276 of a U-shaped bracket 278. Bracket 278 is provided with ears 280 through which rivets 282, or other fastening means, project to engage one of the side walls 10 and support the bracket therefrom. A drawstring 286 is threaded through a circumferentially extending hem 284 formed in the upper portion of the sack C, as may best be seen in FIGURE 1. The ends of the drawstring 286 emerge froinhem 284 through two openings 288. A spring clip 290 of conventional design is mounted on the projecting ends of the draw-' string 2 86, and when the drawstring is tightened, this spring clip holds the mouth of the sack C in a closed position.

Sack C is easily removed from within the confines of container A by simply exerting a sideward pull there- :Qn, whereby the pins 276 momentarily move from the position shown in solid line in FIGURE 3 to that shown in phantom line. As soon as the pins 270 are disengaged from the eyes 268, the pins immediately spring back to the position shown in solid line in FIGURE 3, ready to have another sack C mounted thereon.

The use and operation of the invention have been described in detail hereinabove and need not be repeated.

Although the present invention is fully capable of achieving the objects and providing the advantages hereinbefore mentioned, it is to be understood that it is merely illustrative of the presently preferred embodiment thereof and Ido not mean to be limited to the details of construction herein shown and described, other than .as defined in the appended claims.

I claim: I

1. In an automotive service station trash disposal apparatus of the type which includes a trash-receiving container having an opening formed therein that is closed by a pivotally supported guide in the form a chute when .said guide is in a first position, the combination of an air-operated actuator, which when energized, pivots said guide to a second position in which trash may be deposited in said guide, and after a predetermined length of time pivots said guide to said first position to discharge trash therefrom into said container and close said opening, which actuator comprises:

. (a) a cylinder having first and second .open ends supported in said container;

(b) a piston slidably movable in said cylinder;

is admitted into a first confined space therein, a

second passage through which compressed air disincludes:

includes: 1

charges from said first confined space into said cylinder to move said piston and rod in a direction to pivot said guide' into said second position, and a third passage that is in communication'with the interior of said cylinder and the ambient atmosphere, said third passage being of substantially smaller cross section than said second passage, and the rate at which air flows from said cylinder through said third passage to the ambient atmosphere determining the rate at which said piston and rod are moved in said cylinder by said first means towards said first housing, which rate in turn determines the time that it takes for said guide to pivot from said second to said first position;

(f) second means for obstructing the flow of com pressed air into said first confined space upon the pressure of air therein reaching a predetermined magnitude, said predetermined magnitude being such as to be able to move said piston and rod in said cylinder in a direction away from said first housing to overcome a force exerted by said first means and pivot said guide from said first to said second position; 7

(g) third means for generating a pulse of fluid at increased pressure when said third means is run over by an automotive vehicle or stepped on by a person;

(h) fourth means for obstructing the flow of said compressed air at said predetermined magnitude from said first confined space through said second passage to said cylinder when said fourth means is in a first position, but said fourth means permitting flow of said compressed air from said first confined space through said second passage when said fourth means is in a second position; and

(i) fifth means responsive to said pulse of fluid from said third means for moving said fourth means from said first to said second position for a sufiicient length of time for said compressed air at said predetermined magnitude in said first confined space to flow through said second passage to said cylinder to move said piston and rod therein to a position where said guide is in said second position.

2. An apparatus as defined in claim 1 which further (a) a sack having a plurality of eyes circumferentially spaced around an open end portion thereof; (b) a plurality of spring-loaded pins mounted in said container that removably engage said eyes, said pins supporting said sack in a position to receive trash from said guide as said guide pivots from said second to said first position, and said sack being disengaged from said pins when a sidewise force is exerted on said sack; and (c) a movably supported door on said container to have access to said sack to remove the same when full of trash and mount an empty one of said sacks on said pins.

' 5 3. An apparatus as defined in claim 1 which further (a) a receptacle mounted, in the upper interior of said container in which a supply of a liquid disinfectant- IT deodorant is held;

(11) a body having a confined space of predetermined volume therein, said body supported on the lower end of said receptacle, said-body having a fourth passage therein through which said liquid flows by force of gravity from said receptacle to said confined space of'predetermined volume, and a fifth passage leading from said confined space of predetermined volume to the exterior of said body;

(c) first valve means in .said fourth passage in said body for permitting said liquid" to flow to said confined'space of predetermined volume, but preventing includes:

. 10 the flow of said liquid from said confined space back to said receptacle;

(a!) second valve means in said fifth passage in said body for preventing the flow of said liquid in said confined space of predetermined volume until said liquid therein is subjected to a first elevated pressure; and

(e) sixth means actuated by said compressed air as it flows from said first confined space through said second passage for exerting said first elevated pressure on said liquid in said space of predetermined volume to discharge the same through said fifth passage in said body into the interior of said container. Y

4, An apparatus as defined in claim 1 which further (a) a receptacle mounted in the upper interior of said container in which a supply of a liquid disinfectantdeodorant is held;

(b) a body having a confined space of predetermined volume therein, said body supported on the lower end of said receptacle, said body having a fourth passage therein through which said liquid flows by 7 force of gravity from said receptacle to said confined space of predetermined volume, and a fifth passage leading from said confined space of predetermined volume to the exterior of said body;

(0) first valve means in said fourth passage in said body for permitting said liquid to flow by gravity to said confined space of predetermined volume, but preventing the flow of said liquid from said confined space back to said receptacle;

(d) second valve means in said fifth passage in said body for'preventing the flow of said liquid in said confined space of predetermined volume through said fifth passage until said liquid in said confined space of predetermined volume is subjected to a first elevated pressure;

(e) sixth means actuated by said compressed air as it flows from said first confined space for exerting said first elevated pressure on said liquid in said space of predetermined volume to discharge the same through said fifth passage in said body into the interior of said container; V

(f) a foot pedal pivotally supported on said con tainer;

(g) seventh means actuated when said pedal'is forcefully moved for exerting said first elevated pressure on said liquid in said space of predetermined volume to discharge the same through said fifth passage in said body into the interior of said container; and

(h) eighth means actuated when said pedal is forcefully moved for pivoting said guide from said first to said second position and so maintaining said guide in said second position. as long as said force is maintained on said pedal.

5. An apparatus as defined in claim 1 wherein said fourth means includes:

ond passage when said first diaphragm is in said first,

position, but does not obstruct said second passage when said first diaphragmjis in said second position.

6. An apparatus as defined in claim 1 wherein said 1 second means includes: v

(q)'a second resilient diaphragm thatspans a second.

opening in said first housing, with a first side of said second diaphragm in contact with the ambient atmosphere, and a second side of said second diaphragm partially defining said first confined space, said second diaphragm occupying a first position when the air pressure on opposite sides of said second diaphragm is substantially the same;

(b) a rod connected to said second diaphragm and extending towards said first passage; and

(c) a second valve member on said rod that only seals with a portion of said housing that defines said first passage when said compressed air in said first confined space has reached said pressure of predetermined magnitude and deforms said second diaphragm to a second position, with the resiliency of said second diaphragm moving said second valve member from said second position to permit further flow of said compressed air into said first confined space when said pressure of said air in said first confined space falls below said pressure of predetermined magnitude.

7. An apparatus as defined in claim 1 wherein said third means comprises a length of resilient tube having a closed outer end and is filled with air, said tube having a pulse of air at increased pressure generated therein when a portion of said hose is momentarily collapsed by being run over by an automotive vehicle or stepped on by a person. 7

8. An apparatus as defined in claim 7 wherein said fifth means includes:

(a) second and third hollow housings disposed endto-end relative to said first housing, said second housing having one end wall that has an opening formed therein that is spanned by a first diaphragm and annother end wall that has a fourth passage therein that is in communication with the ambient atmosphere, said end Walls of said second housing, the side wall thereof, and said first diaphragm cooperatively defining a second confined space;

(b) a third resilient diaphragm disposed between said 12 fined space and the ambient atmosphere,.said third diaphragm normally occupying a first position but capable of momentarily moving to a second position when said pulse of air enters said third confined space, and said third diaphragm returning from said second to said first position after an appreciable period of time that is determined by the rate at which said pulse of air at elevated pressure is bled through said sixth passage to the ambient atmosphere; (0) a plurality of pivotally connected links, one of which is connected to said third diaphragm on the side thereof opposite said third confined space;

(d) a valve member connected to said links that seals (e) restricted passage means connecting said first and second confined spaces at all times for the pressure of said compressed air to be substantially the same pressure in both of said spaces, with said first diaphragm moving from said first to said second position to admit compressed air to said cylinder when a differential in pressure is effected between said first and second confined spaces by said third diaphragm moving to said second position to allow said compressed air in said second confined space to escape therefrom.

References Cited in the file of this patent UNITED STATES PATENTS second and third housings, said third diaphragm co- 2,125,122 Mongiello uly 26, 1938 operating with said third housing to define a third 2,281,630 Southard May 5, 1942 confined space therein, said third housing having a 2,475,105 Milton July 5, 1949 fifth passage formed therein that is in communica- 5, 8 Alyea Nov. 13, 1951 tion with the interior of said tube and an sixth pas 3, 43,277 Carlson July 10, 1962 sage that is in communication with said third con- 3,031,937 Kre r --s- Mar- 9, 3 

1. IN AN AUTOMOTIVE SERVICE STATION TRASH DISPOSAL APPARATUS OF THE TYPE WHICH INCLUDES A TRASH-RECEIVING CONTAINER HAVING AN OPENING FORMED THEREIN THAT IS CLOSED BY A PIVOTALLY SUPPORTED GUIDE IN THE FORM A CHUTE WHEN SAID GUIDE IS IN A FIRST POSITION, THE COMBINATION OF AN AIR-OPERATED ACTUATOR, WHICH WHEN ENERGIZED, PIVOTS SAID GUIDE TO A SECOND POSITION IN WHICH TRASH MAY BE DEPOSITED IN SAID GUIDE, AND AFTER A PREDETERMINED LENGTH OF TIME PIVOTS SAID GUIDE TO SAID FIRST POSITION TO DISCHARGE TRASH THEREFROM INTO SAID CONTAINER AND CLOSE SAID OPENING, WHICH ACTUATOR COMPRISES: (A) A CYLINDER HAVING FIRST AND SECOND OPEN ENDS SUPPORTED IN SAID CONTAINER; (B) A PISTON SLIDABLY MOVABLE IN SAID CYLINDER; (C) A ROD PIVOTALLY CONNECTED TO SAID PISTON AND GUIDE THAT EXTENDS THROUGH SAID FIRST OPEN END; (D) FIRST MEANS THAT TEND AT ALL TIMES TO PIVOT SAID GUIDE FROM SAID SECOND TO SAID FIRST POSITION; (E) A FIRST HOLLOW HOUSING THAT CLOSES SAID SECOND END OF SAID CYLINDER, WHICH FIRST HOUSING HAS A FIRST PASSAGE FORMED THEREIN THROUGH WHICH COMPRESSED AIR IS ADMITTED INTO A FIRST CONFINED SPACE THEREIN, A SECOND PASSAGE THROUGH WHICH COMPRESSED AIR DISCHARGES FROM SAID FIRST CONFINED SPACE INTO SAID CYLIN DER TO MOVE SAID PISTON AND ROD IN A DIRECTION TO PIVOT SAID GUIDE INTO SAID SECOND POSITION, AND A THIRD PASSAGE THAT IS IN COMMUNICATION WITH THE INTERIOR OF SAID CYLINDER AND THE AMBIENT ATMOSPHERE, SAID THIRD PASSAGE BEING OF SUBSTANTIALLY SMALLER CROSS SECTION THAN SAID SECOND PASSAGE, AND THE RATE AT WHICH AIR FLOWS FROM SAID CYLINDER THROUGH SAID THIRD PASSAGE TO THE AMBIENT ATMOSPHERE DETERMINING THE RATE AT WHICH SAID PISTON AND ROD ARE MOVED IN SAID CYLINDER BY SAID FIRST MEANS TOWARDS SAID FIRST HOUSING, WHICH RATE IN TURN DETERMINES THE TIME THAT IT TAKES FOR SAID GUIDE TO PIVOT FROM SAID SECOND TO SAID FIRST POSITION; (F) SECOND MEANS FOR OBSTRUCTING THE FLOW OF COMPRESSED AIR INTO SAID FIRST CONFINED SPACE UPON THE PRESSURE OF AIR THEREIN REACHING A PREDETERMINED MAGNITUDE, SAID PREDETERMINED MAGNITUDE BEING SUCH AS TO BE ABLE TO MOVE SAID PISTON AND ROD IN SAID CYLINDER IN A DIRECTION AWAY FROM SAID FIRST HOUSING TO OVERCOME A FORCE EXERTED BY SAID FIRST MEANS AND PIVOT SAID GUIDE FROM SAID FIRST TO SAID SECOND POSITION; (G) THIRD MEANS FOR GENERATING A PULSE OF FLUID AT INCREASED PRESSURE WHEN SAID THIRD MEANS IS RUN OVER BY AN AUTOMOTIVE VEHICLE OR STEPPED ON BY A PERSON; (H) FOURTH MEANS FOR OBSTRUCTING THE FLOW OF SAID COMPRESSED AIR AT SAID PREDETERMINED MAGNITUDE FROM SAID FIRST CONFINED SPACE THROUGH SAID SECOND PASSAGE TO SAID CYLINDER WHEN SAID FOURTH MEANS IS IN A FIRST POSITION, BUT SAID FOURTH MEANS PERMITTING FLOW OF SAID COMPRESSED AIR FROM SAID FIRST CONFINED SPACE THROUGH SAID SECOND PASSAGE WHEN SAID FOURTH MEANS IS IN A SECOND POSITION; AND (I) FIFTH MEANS RESPONSIVE TO SAID PULSE OF FLUID FROM SAID THIRD MEANS FOR MOVING SAID FOURTH MEANS FROM SAID FIRST TO SAID SECOND POSITION FOR A SUFFICIENT LENGTH OF TIME FOR SAID COMPRESSED AIR AT SAID PREDETERMINED MAGNITUDE IN SAID FIRST CONFINED SPACE TO FLOW THROUGH SAID SECOND PASSAGE TO SAID CYLINDER TO MOVE SAID PISTON AND ROD THEREIN TO A POSITION WHERE SAID GUIDE IS IN SAID SECOND POSITION 